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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,657 records · Page 92

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NASA NTRS1968

Quasilinear theory of resonant diffusion in a magnetoactive, relativistic plasma.

Quasi-linear behavior of collisionless relativistic plasma in uniform magnetic field, discussing resonant diffusion and turbulent waves effects

Lerche, I.↗

NASA NTRS1968

Cosmic-ray diffusion tensor and its variation observed with Mariner 4.

Interplanetary magnetic field power spectra from Mariner 4 spacecraft data used to determine cosmic ray diffusion tensor and variation in interplanetary space

Coleman, P. J., Jr.↗

NASA NTRS1968

Reflection and transmission coefficients for a diffused interface.

Wave reflection and transmission coefficients for diffused interface reveal relation of magnitude and phase to wavelength and permittivity of homogeneous media

Nemec, J.↗

NASA NTRS1968

Imagery with pseudo-randomly diffused coherent illumination.

Imagery with coherent laser light improved by pseudorandom coded diffuser

Leith, E. N.↗

NASA NTRS1968

High-temperature viscosities and diffusivities of ionized hydrogen-uranium mixtures.

Ionized H-u mixtures high temperature viscosity and diffusivity calculation method

Schneiderman, S. B.↗

NASA NTRS1969

Diffusion of trace gases for leak detection - A study

Study reveals quantitative measurements of the diffusion of trace gases /Freon and helium/ injected into systems by different methods. Results show that uniform mixing does not always occur, thus evaluation of the system under test and establishment of the method of trace gas injection are mandatory.

Brown, J. L.↗

NASA NTRS1969

Diffusion bond method of joining steel and a TFE-bronze composite

Diffusion bonding method does not affect the mechanical properties of steel nor the strength of Teflon. It alleviates problems of adhesive outgassing, radiation damage, and delamination.

Lalacona, F. P.↗

NASA NTRS1969

Lateral PNP bipolar transistor with aiding field diffusions

Fabrication technique produces field aided lateral PNP transistors compatible with micropower switching circuits. The sub-collector diffusion is performed with phosphorus as the dopant and the epitaxy is grown using the higher temperature silicon tetrachloride process.

Gallagher, R. C.↗

NASA NTRS1968